Chem-DSE-10: Applied Inorganic Chemistry — DU B. Sc. Life Science (Chemistry) Previous Year Question Papers

(b) Discuss the "gold standard" role of lithium in treating bipolar disorder. 5 (c) Discuss the role of zeolites as catalysts in the petrochemical industry. 5 (b) Discuss the historical role and modern applications of Gold-containing drugs in (c) Explain the mechanism of Fischer-Tropsch synthesis, including chain initiation, propagation, and termination steps to form alkanes and alkenes. 5 1. (a) How is di-ammonium phosphate (DAP) fertilizer prepared industrially? Discuss the impact of DAP on the environment. (b) Classify the following fertilizers as direct and indirect. (iii) Calcium superphosphate (iv) Calcium Carbonate (v) Ammonium nitrate (c) Describe in detail the catalytic cycle for the hydrogenation of an alkene using Wilkinson's catalyst. 5 2. (a) Explain the manufacture, properties and applications of the ammonium nitrate as fertilizers. 5 (b) What are the sources and significance of nitrogen, phosphorus, and potassium in the growth of plant growth? 5 (c) Explain the following terms with examples (any two): 5 (i) Insertion reaction (ii) Reductive-elimination reaction (iii) Oxidative-addition reaction 3. (a) Briefly describe the environmental impact of using fertilizers in farming. 5 (b) What do you mean by fertilizer? Why do we need to add them to the soil? 5 (c) Write the two metal diagnostic agents and discuss their applications in medicine. 5 4. (a) Explain the following terms with examples (any two): 2.5×2=5 (i) What precautions should be taken while storing ammonium nitrate? (ii) Single superphosphate (iii) KCl do not require chemical synthesis. (b) Define catalyst and write the characteristics of good catalyst. 5 (c) Explain the following: 2.5×2=5 (i) Catalytic promoters (ii) Importance of biocatalysis 5. (a) Compare and contrast the clinical uses of BAL and DMSA chelating agents in arsenic and mercury poisoning. 5